Morgan Stanley estimates $1.6 trillion of AI capex in 2027 will drive about a quarter of S&P 500 sales growth, and zerohedge flags that half is debt funded
$1.6 trillion in projected AI capex drives 5% of 2027 sales and 25% of sales growth. Half of that capex is debt-funded. Would be a pity if something happened to the debt market.
Context
If a single spending wave accounts for this much of corporate growth, any stress in the debt that funds it would reach far beyond tech stocks.
This is secondhand: zerohedge is sharing an exhibit from Morgan Stanley research, with its own warning about the debt market added. Crypto Briefing reported the same Morgan Stanley figures, including that about half of the projected spending is expected to be debt financed.
Deep dive
On October 18, zerohedge posted that $1.6 trillion in projected AI capex drives 5% of 2027 sales and 25% of sales growth, that half of that capex is debt funded, and that it would be a pity if something happened to the debt market.
The attached Morgan Stanley Research exhibit says hyperscaler and neocloud AI capex nearly doubles from $1.0 trillion in 2026 to $1.6 trillion in 2027. It estimates that only 65% of that spending lands in S&P 500 revenue, about $1.0 trillion, equal to 5% of the index's 2027 sales. Nvidia alone takes about $690 billion, two thirds of the total. The exhibit puts 2027 S&P 500 sales growth at 8.6%, or 6.6% without AI capex, so AI spending supplies about 24% of the growth.
Crypto Briefing, reporting on the same research, said Morgan Stanley puts the 2027 figure at about $1.58 trillion including roughly $195 billion in lease commitments, rising to $1.81 trillion in 2028, and that half the investment is expected to be financed with debt.
In a post minutes earlier, zerohedge shared a second Morgan Stanley chart of the S&P 500's 27% third quarter earnings growth. It shows the Magnificent Seven contributing 26.5% of that growth and other AI beneficiaries 34.9%, with Micron the largest single contributor at 18.8% and Nvidia at 15.0%.
What to expect next
Watch hyperscaler earnings in the coming weeks for any change to 2027 capex plans, since Morgan Stanley's estimate makes the index's growth unusually dependent on them.
Also watch credit markets for the companies borrowing to build data centers, which Goldman has flagged as a weak point after CoreWeave's slide. If debt funding tightens, the drag could show up in Nvidia's revenue and in the broader index.